ilo: set VME for 3DSTATE_PS
ilo: set VME for 3DSTATE_PS

When the bit is not set, we can see sampling artifacts on triangle edges when
the mip filter is not GEN6_MIPFILTER_NONE.

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler